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Kinetics of thermal decomposition of intermediate hydrates and basic salts of iron(II) sulphate heptahydrate

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Abstract

The kinetics of thermal decomposition of iron(II) sulphate hexa- to monohydrates, as well as the hydroxy- and oxysulphates of iron(III), are presented and discussed. The results confirm that the final intermediate that decomposes to iron(III) oxide and sulphur trioxide during the thermal decomposition of any hydrate of iron(II) sulphate is the oxysulphate, Fe2O(SO4)2.

Zusammenfassung

Die Kinetik der thermischen Zersetzung von Eisen(II)-sulfat-Hexahydrat zum Monohydrat und von Hydroxy- und Oxysulfaten von Eisen(III) ist angegeben und wird diskutiert. Die Ergebnisse bestätigen, daß das letzte, sich zu Eisen(III)-oxid und Schwefeltrioxid zersetzende Zwischenprodukt bei der thermischen Zersetzung aller Hydrate von Eisen(II)-sulfat das Oxysulfat Fe2O(SO4)2 ist.

Резюме

Представлена и обсуж дена кинетика реакци й термического разлож ения различных гидратов (от гекса- до м оногидрата) сульфата железа, а также гидроокиси и ок сисульфатов трехвалентного желе за. Результаты подтве рдили, что промежуточным проду ктом разложсния какого-либо гидрата с ульфата двухвалентн ого железа является оксисульфа т Fe2O(SO4)2, разлагающийся затем до окиси трехвалентн ого железа и трехокиси серы.

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References

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Authors and Affiliations

  1. Regional Research Laboratory, Bhubaneswar-751013, Orissa, India

    T. P. Prasad

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  1. T. P. Prasad
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Additional information

The author is grateful to Prof. P. K. Jena, Director, for his kind permission to publish the results.

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Prasad, T.P. Kinetics of thermal decomposition of intermediate hydrates and basic salts of iron(II) sulphate heptahydrate. Journal of Thermal Analysis 31, 553–557 (1986). https://doi.org/10.1007/BF01914231

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  • DOI: https://doi.org/10.1007/BF01914231

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